paper

Two phase transitions in the fully frustrated model

arXiv:cond-mat/9506082 · doi:10.1103/PhysRevLett.75.2758

Abstract

The fully frustrated model on a square lattice is studied by means of Monte Carlo simulations. A Kosterlitz-Thouless transition is found at , followed by an ordinary Ising transition at a slightly higher temperature, . The non-Ising exponents reported by others, are explained as a failure of finite size scaling due to the screening length associated with the nearby Kosterlitz-Thouless transition.

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